High Speed Steel SKH51
PRECISION RECTANGULAR EJECTOR PINS –RECTANGULAR SHANK TYPE–
Part Number – L –P–W–N–(HC/TC) ERSRP2.5 – 90.05 – P1.00 – W0.40 – N50 –HC3.0 – TC2
High Speed Steel SKH51
Alterations
Dies Steel SKD61 + Nitrided
Alterations Code
Spec.
Alterations Code
Spec.
Changes flange width B ≦ HC < H 0.1mm increments
Changes the flange thickness 2.0 ≦ TC < 4 TC = 0.1mm increments (Dimensions L and N remain unchanged) E 4−TC ≦ Lmax.−L
4
TC
TC
HC
4mm
E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
JIS (6/8mm)
ERSRP
P/W 0
–0.01
P/W 0
–0.02
Step R ※
T ＝ 4
0 －
0.02
P/W 0
R ≦ 0.1
–0.005
P/W 0
–0.003
Standard size
P － 0.005 0
0 － 2
N
Total Length Designation Free designation
＋ 0.02 0
L
N dimension short
M Material SKH51 H Hardness 58–60HRC
※ Step radius (R): 50–75R (This is the size of grindstone used to process R section. This is not a guaranteed value for R.)
Angular pin
Part Number
0.01mm increments
N min.
N 1mm increments
Rectangular R dimension
H T
Type
B
L
P
W
Tip process
1.5 50.00 – 100.00 0.30 – 3.00
0.30 –1.30
25
2.5
Caulking type
N ≦ (L – 5)
ERSRP
2.5 50.00 – 120.00 0.40 – 5.00
0.40 –2.30
3.5
28
4
Rectangular shank
3.5 50.00 – 150.00 0.50 – 10.00
0.50 –3.30
4.5
32
D shaped
PartNumber – L – P – W – N ERSRP2.5 – 105.10 – P4.00 – W0.40 – N60
Order
Precision Standard
Blade edge shape
Pmin. Pmax.
Squareness of the tip corner
W plane as the base (Pmax. – Pmin.) ≦ 0.01
Delivery Quotation
Rmax.
Rmax. ≦ 0.03 (deburring R) E The tip corners have been slightly trimmed to measure the P/W dimensions. (Details D P.166 )
Corner R value of the tip corner
211
212
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